How to Install a Hot Water Recirculation Pump

A recirculation pump moves hot water in a loop so it's ready at every fixture the moment you open the tap.

Common causes

• Long wait for hot water at far fixtures
• Water waste every morning
• Existing dedicated return line or not
• Combi-boiler compatibility

Step-by-step

1. 01Confirm the tank or combi-boiler supports a return line
2. 02Install pump at the water heater outlet with a check valve
3. 03Add a bridge valve at the furthest fixture (no dedicated return systems)
4. 04Program on a schedule or motion-sensor mode

When to call Northbridge

• No dedicated return line and bridge valve install
• Combi-boiler requiring specific compatible pump
• Multiple loops across a large home
• Timer + motion sensor integration